Beat the eggs in a mixing bowl and mix in the cream of tartar, sugar, vanilla essence and water.
Sift in the flour and mix together to form a thick dough.
Grease a square, as bag like, shaped baking tin and pour in the dough.
Bake in an oven for 30 minutes at 350ËšC.
Mix some roll icing together with black food colouring until it turns grey, roll it out and place over the cake, cutting off any excess icing.
Use a form to pierce the quilted Chanel pattern in to the icing.
Roll some grey icing in to a tube and stick to the cake for the handle.
Cut out two C shapes of yellow or gold roll icing and place on the cake for the Chanel logo and roll out two thin strips and wrap them around the handle as the Chanel chain.